Base | Representation |
---|---|
bin | 111011001001… |
… | …1110001111100 |
3 | 2011100200020010 |
4 | 1312103301330 |
5 | 30414422022 |
6 | 3024423220 |
7 | 524420601 |
oct | 166236174 |
9 | 64320203 |
10 | 31014012 |
11 | 16563317 |
12 | a477b10 |
13 | 656b6b3 |
14 | 41946a8 |
15 | 2ac950c |
hex | 1d93c7c |
31014012 has 48 divisors (see below), whose sum is σ = 75220992. Its totient is φ = 9935040.
The previous prime is 31013993. The next prime is 31014013. The reversal of 31014012 is 21041013.
It is a happy number.
It is a super-2 number, since 2×310140122 = 1923737880672288, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31014013) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97678 + ... + 97994.
It is an arithmetic number, because the mean of its divisors is an integer number (1567104).
Almost surely, 231014012 is an apocalyptic number.
It is an amenable number.
31014012 is an abundant number, since it is smaller than the sum of its proper divisors (44206980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31014012 is a wasteful number, since it uses less digits than its factorization.
31014012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 618 (or 616 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 31014012 is about 5569.0225354186. The cubic root of 31014012 is about 314.1853882450.
Adding to 31014012 its reverse (21041013), we get a palindrome (52055025).
The spelling of 31014012 in words is "thirty-one million, fourteen thousand, twelve".
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